Root of a Quadratic Equation

How To : Factor using the ABC method in beginning algebra

Lawrence Perez, from Saddleback College, and his assistant Charlie, give this beginning-algebra two-part lesson on factoring with the ABC method. Solve those darn quadratic equations! Part 1 of 2 - How to Factor using the ABC method in beginning algebra. Part 2 of 2 - How to ...more

How To : Match quadratic functions

This is the demo showing how match quadratic equations in the graphs. Plug in x=0. So everything with x cannot disappear. There is only one negative three in the equations. Let's look at the equations that has the four as y in the set. One of the difference between each equati ...more

How To : Factor perfect square polynomials

Learn how to factor perfect square polynomials and how to solve equations using the square root property. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Interne ...more

How To : Understand completing the square

In this video, we learn how to understand completing the square. First, you will write the quadratic expression out. Then, you will write the open bracket so you write it out in the correct format. Now, find the number in front of the 'x' term, which is the coefficient. Then, ...more

How To : Factor a trinomial

In this video the instructor shows how to factor a general quadratic polynomial. Here the first step is to identify the coefficient of the squared term. Write the reciprocal of the numerical coefficient of the squared term out side and write two separate parenthesis which are ...more

How To : Factor trinomials in a very simple way

In this video, they demonstrate how to factor a trinomial. A trinomial is a polynomial with a quadratic term in the form, ax^2+bx+c. To factor this polynomial first multiply the a and c term. You must fine two numbers that multiply to a*c and add up to b. Once you have figured ...more

How To : Use the distance formula for two points

In this tutorial, we learn how to use the distance formula for two points. The distance formula is D= the square root of (X2-X1) squared, plus (Y2 minus Y1) squared. It may look confusing, but it's just a derivation of a theorem. First, find the two points that you have and gr ...more

How To : Solve radical equations in algebra

The video demonstrates the solving of radical equations in algebra. The first thing to be done is to keep the radical number on one side and the other numbers on the other side. The radical is then changed to a rational number by squaring, cubing etc. Once the roots are remove ...more

How To : Translate a word problem into algebra

This video shows the method to change a word problem into algebra and to identify rational numbers among a group of numbers. In the first part of the video we take a word problem namely - The product of 9 and seven, less than a number. 9 multiplied by something can be expresse ...more

IRC Guide : Making a Bot

Hello fellow Nullbytiens, I'm Washu, a long time commenter but first time poster. Today we'll be making an IRC bot, if you haven't seen OTW's post about the new IRC channel I would encourage you to go check it out. He does a good job at explaining what IRC is and how to get se ...more

How To : Speed Test Your Chromecast or Android TV

The Google Cast feature that serves as the primary interface for the Chromecast and comes bundled with Android TV devices like the Nexus Player is a marvel of modern technology. But as these things go, troubleshooting issues can be difficult with something so groundbreaking, e ...more

How To : Install Magisk on Your Pixel or Pixel XL

Google's Pixel phones claimed the top spot in our ranking of the best phones for rooting, but they do have one drawback from a modder's perspective: Because of their A/B partition layout for seamless updates, the devices don't have official support for Magisk. Thankfully, thou ...more

How To : 20 Hidden Calculator Tricks for Your iPhone

The Calculator app is probably one of Apple's most-used iPhone apps, yet I always meet people who don't know all the little tricks there are to using it more efficiently. You may know most of them, but there's a chance you don't or at least forget about some of them. What a " ...more

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